There has been many articles about 'scientific facts' mentioned in the Quran that were of course well ahead of their time for anyone to know about.
One such fact from this surah (surah 55) is about a barrier between the seas:
Verses 19-20 state:
"He has let free the two bodies of flowing water, meeting together. Between them is a Barrier which they do not trangress"
Modern Science has discovered that in the places where two different seas meet, there is a barrier between them. This barrier divides the two seas so that each sea has its own temperature, salinity, and density. For example, Mediterranean sea water is warm, saline, and less dense, compared to Atlantic ocean water. When Mediterranean sea water enters the Atlantic over the Gibraltar sill, it moves several hundred kilometers into the Atlantic at a depth of about 1000 meters with its own warm, saline, and less dense characteristics. The Mediterranean water stabilizes at this depth (see figure 13).
Figure 13: The Mediterranean sea water as it enters the Atlantic over the Gibraltar sill with its own warm, saline, and less dense characteristics, because of the barrier that distinguishes between them. Temperatures are in degrees Celsius (C°). (Marine Geology, Kuenen, p. 43, with a slight enhancement.
Although there are large waves, strong currents, and tides in these seas, they do not mix or transgress this barrier.
The Holy Quran mentioned that there is a barrier between two seas that meet and that they do not transgress. (55:19-20)
But when the Quran speaks about the divider between fresh and salt water, it mentions the existence of “a forbidding partition” with the barrier. God has said in the Quran:
"He is the one who has set free the two kinds of water, one sweet and palatable, and the other salty and bitter. And He has made between them a barrier and a forbidding partition." (Quran, 25:53)
One may ask, why did the Quran mention the partition when speaking about the divider between fresh and salt water, but did not mention it when speaking about the divider between the two seas?
Modern science has discovered that in estuaries, where fresh (sweet) and salt water meet, the situation is somewhat different from what is found in places where two seas meet. It has been discovered that what distinguishes fresh water from salt water in estuaries is a “pycnocline zone with a marked density discontinuity separating the two layers.” This partition (zone of separation) has a different salinity from the fresh water and from the salt water (see figure 14).
Figure 14: Longitudinal section showing salinity (parts per thousand ‰) in an estuary. We can see here the partition (zone of separation) between the fresh and the salt water. (Introductory Oceanography, Thurman, p. 301, with a slight enhancement.)
This information has been discovered only recently, using advanced equipment to measure temperature, salinity, density, oxygen dissolubility, etc. The human eye cannot see the difference between the two seas that meet, rather the two seas appear to us as one homogeneous sea. Likewise, the human eye cannot see the division of water in estuaries into the three kinds: fresh water, salt water, and the partition (zone of separation).
taken from
A Brief Illustrated Guide To Understanding Islam, Muslims, and the Quran
Also in this Surah - verse 17 it states:
"(He is) Lord of the Two Easts and Lord of the Two Wests"
In the original Arabic script, the words east and west have been used in the dual form. It implies that Allah is the Lord of two easts and two wests.
The science of geography tells us that the sun rises from the east, but the point of sunrise keeps shifting throughout the year. Only on two days of the year known as ‘equinox’, does the sun rise exactly from due east. On the remaining days, it rises either from a little north or a little south of due east. During summer solstice the sun rises from one extreme of the east and during winter solstice it rises from the other extreme. Similarly, the sun sets in one extreme of the west in summer solstice. It sets in the other extreme of the west in winter solstice. This phenomenon can be easily seen in Bombay or any other city, by people living in certain areas, or in tall skyscraper buildings, from where the rising or setting of sun can be seen. They are able to notice that during the summer solstice the sun rises from one extreme of east and during winter solstice it rises from the other extreme of east. In short, through out the year, the sun keeps rising from different points of the east and sets on different points of the west. Thus when the Qur’an refers to Allah as the Lord of two easts and two wests, it means that Allah is the Lord of both the extremes of east and both the extremes of west.
Arabic language has two types of plurals. One is the dual plural i.e. the plural that implies the existence of two. The other is the plural for more than two, i.e. three and above. In Surah Rahman verse 17 the Arabic words used are mashriqaini and magribaini which are in dual plural and therefore imply two easts and two wests.
Consider the following verse of the Qur’an: "Now I do call to witness the Lord of all points in the East and the West." [Al-Qur’an 70:40]
The Arabic words for east and west used in this verse are mashaariqi and magharibi’which are plurals that imply the existence of more than two.
We can thus conclude that the Qur’an refers to Allah being the Lord of all the points in the east and all the points of the west, as well as the Lord of both the extreme points of east and both the extreme points of west.
taken from:
*Islamic Shield Muslim Defence*
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